Smoking out the exhaust pipe

[drownthecity]

Okay, so I know there's a bunch of threads related to this. So the past few months my car had been smoking at idle, like at stop lights and at WOT. I replaced the valve seals and then it started smoking when letting off the throttle. It would also smoke at stop lights for a short time after getting off the interstate at idle.

I replaced the turbo with a used T25 I got off the classifieds here but it is still smoking but possibly not as much (or maybe that's just my wishful thinking..)

The only CEL I have is for my rear o2 sensor but that shouldn't make a difference I'd imagine.

Could it be rings? Or..?

 

[drownthecity]

...so you decided to start another? Weird.


Pretty safe to say it's not the turbo if you swapped it with another and the problem is still there. If the smoke suddenly appeared after a valve seal job, I think you're wasting your time looking anywhere else.

It didn't appear after a valve seal job. It appeared a few months prior. I replaced the seals but I'm pretty sure some of them may have ripped since they weren't lubed in oil or weren't seated down fully.

 

[93AWDDSM]

...so you decided to start another? Weird.


Pretty safe to say it's not the turbo if you swapped it with another and the problem is still there. If the smoke suddenly appeared after a valve seal job, I think you're wasting your time looking anywhere else.

definately looking at valve seals. Mine is doing it currently and I checked inside the runners on the head with the exhaust manifold off and 5/8 exhaust valves had oil on them.

 

[drownthecity]

definately looking at valve seals. Mine is doing it currently and I checked inside the runners on the head with the exhaust manifold off and 5/8 exhaust valves had oil on them.

I keep feeling like that's what it is. I'm feeling it's those or piston rings. I'm hoping not the latter of the two.